Improvement in hot-water heaters



G. H. SELLERS.

Domestic Boiler.

Paltenled Oct. 2.7-, 1868.

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GEORGE H. SELLERS, OF PHCENIXVILLE, PENNSYLVANIA.

Letters Patent No. 83,553, dated October 27, 1868.

IMPROVEMENT' IN HOT-WATER HEATERS.

MOH- The Schedule referred to :in these Letters Patent and -makingpart of-the same.

To all whom it magi concer-n Be it known that I, GEORGE H. SELLERS, of Phcenixville, in .the county of- Chester, and State of Rennsyl- Vania, have invented certain nenr and usefull lmprove-V ments in Hot-'Water Heaters ;V and that the following is a'full, clear, and exact description of the same, reference being had to the accompanying drawings, making part of this specification, in whichy.

Figure 1 represents a perspective View of the hot- Watcr heater. i

Figure 2 represents a vertical section through the same.

Similar letters of reference, where they occur, denote like parts of the heater in all the figures.

The object of my inventionis to construct a hotwater heater, which will, by its form, produce a more direct action of the heat upon the Walls ofthe water-A chamber, at the same time causing the waterto circulate more freely, and admitting the .air to the fire-chamber in such a Way as not to chillthe fire-boX norcool the water, obviating, in this manner, the clinkering of the coal. I also obviate, in this heater, the necessity "of float or stop-,cock of any kind.

To enabile others skilled in the art to make and use my invent on, I will proceed todescribe the same with "reference to the drawings.

A represents the iireechamber, which is made of a cylindre-conical form, so that the ascending heat will not only slide against, but will strike the walls a of the Water-chamber C, transmitting to them all the heat contained in the whole current of ascending gases. This operation is accomplished, further, by means of the double conical damper B, which divides' the currentl of hotA gases, and directs itagainst the walls it of the water-chamber C. These insidefwalls a, transmitthev heat of the i're to the Water, and-being of a conical shape,` permit the heated particles of water to leave the sides of this chamber as soon as heated to a greater degree than the surrounding particles.

The exterior, l), of the water-chamber is formed of twcrtruucated cones, united at their Vgreatest diameter.

The cold water being admitted at c c, strikes the re-.

chamber A, at its hottest portion, in a thin sheet, allowing its rapid heating, While the upper cone concentrates the hot water to the discharging-pipes l d. The sediment of the water can drop to the bottom in a space, e, the metal of the fire-chamber being there protected by the fire-brick lining4 D.

half closed by a horizontal plate, h; the other half being `closed .by a door, 7:, revolving round the tube f, and

operated by means of the knob t'. Through'the open ing, closed by this door, k, is introduced the coal to feed the fire.

exit-pipe m, through which the products of combustion escape to the chimney. y p

The air necessary for the combustion enters through the opening yn in the ash-box, (which openingl can be regulated by the sliding door 12,) and passes through the grate E to the fire. When the heated air-and products of Vcombustion gradually rise against the sides a of the water-chamber andtransmit their heat to it, and consequently to the water, they then escape through the exitpipe an. W'hen it is desired to check entirely the draught in the furnace, the damper B is raised into the throat q of the tire-chamber, the charging-door k at the top is partially opened, admitting air direct into the smoke-pipe, without chilling the water or clinkering the fire.

The ash-box G and top'H -can be made either of sheet-iron or castiron,'.but it is preferred to construct the fire and Water-chambers of wrought-iron, one-fourth of an inch thick, as it will standa greater pressure than the city-mains, and can be connected directly to any of them, entirely avoiding any'attention or feeding with water. The damper E can be made hollow, and connected with a gas-pipe, in lieu of the rod g. This damper being perforated with small holes willintroduce a current of heated air into the gases, and thus assist in consuming the products of combustion.

This heater has been found byexperience to be a very simple, cheap, econmical, and easy-managed Waterheater. f

Having thus fully described my invention, What I claim therein as new, and desireto secure by Letters Patent, is-

ln combination with the external water-'chamber C, the cylindre-conical nre-chamber A, as and for the purpose substantially as described.

I also claim, in aA hot-water heater, the vimmediate connection of the water-chamber with the street-mains, so as to avoid the necessity of -a reservoir, substantially as described. j

- GEO. VH. SELLERS.

Witnesses: y

C. J. ADAMSON, l?. G. CAREY.

The top, H, carries at right angles to it the 

